Final answer:
The CF glomerul/o denotes the glomerulus, an integral part of the nephron's renal corpuscle where blood is initially filtered. The glomerulus orchestrates the first step in urine formation by filtering blood based on particle size, and is a fundamental structure in the urinary system's filtration capability.
Step-by-step explanation:
The CF glomerul/o refers to the glomerulus, which is a vital structure within the nephron responsible for the filtration of blood. This filtration process is the first step in urine formation, occurring specifically in the renal corpuscle that houses the glomerular (Bowman's) capsule and the glomerular capillary network. The glomerulus facilitates the movement of filtrate from the capillary into the capsule, starting the process which eventually leads to urinary excretion following reabsorption and secretion phases within the nephron's tubular components.
The urinary system relies on the approximately 2 to 3 million glomeruli situated in the kidneys for the filtration of blood. These specialized capillaries filter blood primarily based on particle size, which means they effectively exclude large elements like blood cells and proteins while allowing other solutes to form a filtrate that is very similar to plasma. From this filtrate, urine is produced and subsequently excreted.